40230726 has 32 divisors (see below), whose sum is σ = 84284928. Its totient is φ = 12777600.

The previous prime is 40230713. The next prime is 40230739. The reversal of 40230726 is 62703204.

It is an interprime number because it is at equal distance from previous prime (40230713) and next prime (40230739).

It is a super-2 number, since 2×40230726² = 3237022628974152, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40230696 and 40230705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54975 + ... + 55701.

It is an arithmetic number, because the mean of its divisors is an integer number (2633904).

Almost surely, 2^40230726 is an apocalyptic number.

40230726 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

40230726 is an abundant number, since it is smaller than the sum of its proper divisors (44054202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40230726 is a wasteful number, since it uses less digits than its factorization.

40230726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 40230726 is about 6342.7695843377. The cubic root of 40230726 is about 342.6514889205.

The spelling of 40230726 in words is "forty million, two hundred thirty thousand, seven hundred twenty-six".